Help?

Can you ladies check if i did the math right for babysitting i did please? Thank you.

Nanny

Tue 6/20/2017.  =2.5

2:00-4:30 pm.

Wed 6/21/2017 =4.20

2:00-6:20 pm.

Thu 6/22/2017. = 4

2:00-6:00 pm.

Friday 6/23/2017 = 2.5

2:00-4:30 pm. =13.20 is that correct??